Portable electric-lighting apparatus.



H, H. HIRSGIL PORTABLE ELBOTRIGLIGHTIN G APPARATUS.

APPLICATION FILED AUG. 28, 1912.

1 7 5 973, Patented 0012.14, 1913.

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WITNESSES: INVENTOR: I [Ml%I/ %Z L l7, v

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H. -11. nmson. PORTABLE ELECTRIC LIQHTING APPARATUS, APPLICATION FILED AUG. 28, 1912.

1,075Q78. Patented 001;. 14, 1913.

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WITNESSES:

' n1 Em'nscn, or PHILADELPHIA, frnmrs'rnvarna.

rom'nnm unaware-manning arraaarus.

accents. Original application filed June 19, 1912',

Specification of Letters ratent.

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To all whom it mm concern: i Be-it known 't at I, HIRAM H. Hnzsorr, a citizen -of the United States, residing at Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement "in Portable Electric. -Lighting Apparatus, whereof the following is a specification, reference being had to theaccompanying drawings. Z

My invention is designed to operate an incandescent electric lamp in connection with a miners cap and in cooperative relation with. a storage battery providedwith means to attachit to the miners person, and, as hereinafter described, includes a lamp casing inclosing said la'inp and having a lens; a switch adapted to open and close an operating circuit of said lamp, including a spring tending to open said switch when released;

a seat in said lamp casing behind said lens; and, a glass panel fitted in said seat, normally maintaining said switch closed; where-.

'yiew of an outfit including a miners cap and belt and embodying my invention. Fig. II 1s a plan View of the-cap and a purtenaces thereof shown in Fig. I. Fig. I is a vertical sectional View taken on the line III,

III in Fig. II.

In said figures, the miners cap including the headband 1, top 2 andpea 3 is provided with a lamp su porting bracket 5 which is vertically pendiant tion with said cap at the to thereof, conveniently formed of leather aving itsupperend 6 extending horizontally and se-' cured to the top 2 of the ca at the front thereof 'by'the rivets 7. Sai bracket 5 has the aperture 8-extending horizontall therethrough ad'pted to receive the hoo of, an ordinary miners lamp, but is also adapted to detachablysupport an incandescent -elec lating block 36 which is clamp flector 37 by the screw 38. Said terminal 34:

in spaced relastorage battery carried by the wearer of the .cap, as hereinafter described:

As shown in Figs. I and III, the incandescent lamp socket 13 has the hanger plate 14 which has its upper portion extending transversely with respect to the axis of said,

socket. and obliquely forward with respect to its lower vertical portion which isfitted to the front face of the pendent portion of said bracket 5. Said socket has the obliquely extending tubular shank 15 having the clamp block 16 'inwhich the flexible conductors 17 and 18 are held by the clamp screw 19. Said socket member 15 carries the spring finger 20 which extends through Serial No. 704,496. Divided and this application flied August 28, x 1912. Serial no. 717,456. 1

. tric lamp in cooperative connection with a the vertical aperture 21 in the horizontal member 6 of the bracket 5, in opposition to said hanger plate 14 so as to resiliently engage said bracket 5 between said hanger late and springfinger. Said conductor 17 1s detachably connected by the screw 22 withthe spring contact '23 carried by the insulating block 24 in said socket 13, and, said conductor 18 is detachably connected with said tubular extension 15 of said socket by the screw 25( The lamp casing 26 forms a plug whichis detachably secured in said socket 13 by its stud 27 engaging the bayonetslot 28 in said socket. Said lamp casing 26 has the menlating block 29 which carries the central contact 36 in concentric relation with the tubu-' lar screw receptacle 31 in which an incan descent electric lamp 32 is. detachably engaged. 1 Said receptacle 31 is electrically connected, by the insulated mm. 35, with the spring terminal 34.- carr1ed the insuis normally electrically connected with said reflector by the cutout spring 39, which is normally held in the position shown in Fig.

' III by the glass panel 40 which fitsin the ,marginal seats 41 in said reflector, sothat the circuit is then completed, by way of said reflector and the metal parts/connected therewith, to said screw' 25 andcondu'ctor 18; The construction and arrangement of said electrical connections including the cut-.

out spring 39 is such that when said panel 40 isaccidentall broken the'lamp 32 s insta'ntly extinguis ed by said spring 39 bendm inwardly and separating from the ter minal 34. Said conductors *17 andfl8 are "conveniently detachably held on' said cap to the re-- by thestrap 42 having the snap fastening 43 which may be readily released to permit said conductors and lamp to be removed from the cap. Said conductors extend through the flexible tubular wire coil 45 t0 the cylindrical plug 46 where they are de tachably connected with the contacts 48 and 49. Said plug 46 has the circularflange 51 which fits within the circular flange 52 on the cap 53 which normall prevents access to the binding screws. radial flange 54- with lugs 55 extending upon opposite sides of said conductors 17 and 18 and is detachabl' secured, in the position shown in Fig. I I, by the screw 56 which extends between said conductors in engagement with the radial flange 58 on said plug '46. Said plug46 has the stud 59 adapted to pass through a notch in the perimeter of the socket 61 in the battery casing 62 and retain said plug in said socket when said stud is turned aside from said notch. Saidv battery casing 62 is convenientl provided with the bail handle 64: having axially alined trunnions 65 and 66 pivotally mounted in the bearings 6'1 and 68 axially parallel with said socket 61 above the latter. Said trunnion 66 is utilized as a detentto retain said lug 46 in engagement with said socket 61,

ing pressed outwardly by the spring 70, into engagement with the detent aperture 71 in sa1d radial flange 58 of said plug 46 ,to normally retain the same in the position shown in Fig. I. Said battery casing 62 is provided with the sheet metal loop 75 through which extends the belt 76, shown in Fig. I, having the buckle 77 so as to be adjustable around the waist of the operator who wears said cap. It being frequently necessary for the miner to work in recumbent position it may be observed that said battery casing 62 with the appurtenances thereof, may be shifted around said belt 76 in accordance with the position which the miner desires to assume. For instance, it may be shifted to the back of the belt whenthe miner desires to lie upon either side, and, it may be shifted to either side when the miner desires to lie upon his back.

It may be observed that the employment of an unprotected incandescent electric lamp in the presence of fire damp, would be extremely dangerous because if the lamp bulb he accidentally broken the incandescent film would cause an explosion by ignition of said Therefore, my invention is advantaswitch which is normally maintained closed by the frangible portion of the lamp casing may be manually operated so that the miner aidcap has theinvents terfiiing to break its bulb may relight it at W1 I do not desire to limit niy'self'to the precise details of. construction and arrangement herein set forth, as it is obvious that various modifications maybe made therein without departing from the essential features of my invention as defined in the appended claims. Iclaim: j

1. The combination with an electric lamp; of a lamp casing inclosing said lamp. and having a lens ;a switch adapted to open and close an operating circuit of said lamp, in-

cluding a spring tending to open said switch when released; a seat in-said-lamp casing said seat, normally-maintaining said switchclosed; 'wherebysaid circuit isbroken and the lamp extinguished when said panel is broken or otherwise removed.

2. The combination with an electric lamp;

behind said lens; and a glass panel fitted in of a lamp casing inclosing said lamp and having a lens; a switch adapted to open and close an operating circuit of said lamp, tending to open said circuit when released; a seat in said lamp casing behind said lens; and a. glass panel fitted in said seat, nor- 'mally maintaining said "switch closed;

whereby said circuit is broken and the lamp extinguished when said panel is broken or otherwise removed.

3. The combination with an electric lamp; of a lamp casing inclosing said lamp and having a transparent portion; a switch adapted to open and close an operating c ircuit of said lamp, including a spring tending to open said switch when released; and a frangible panel in said lamp casing behind said transparent portion, normally maintaining said switch closed; whereby said circuit is broken and the lamp extinguished when said panel is broken .or otherwise removed.

4, The combination with an electric lamp; of a circular lam casing inclosing said lamp in concentric re ation therewith; a cutout spring carried by said casing atone side thereof, movable radially with respect to the axis of said lamp and easing; a spring terminal carried by said casing in registry with said cutout spring; means mechanically connecting said cutout spring and spring terminal, at one end thereof, including a screw carried by said casing and extending through them; a block of insulating material, held by said screw, insulating said spring terminal from said cutout spring; a

glass panel extending in said casing transversely with respect to its axis, normally J holding said cutout spring in electrical con 'tact with said spring terminal at the free ends thereof; and means including said outout spring and spring terminal in the lamp circuit; said cutout spring being constructed and arranged to automatically separate from said spring terminal when released by said panel; whereby said circuit is broken and the lamp extinguished when said panel is broken or otherwise removed.

5. The combination with an electric lamp; of a lamp casing inclosing said lamp; a cutout spring carried by said casing, movable radially with respect to the axis of said lamp; 9. terminal carried by said casing in registry with said spring; means mechanically connecting said spring and terminal, at one end thereof, including a screw carried by said casing and extending through them; a block of insulating material, held by said screw, insulating said terminal from said spring; a frangible panel extending in said casing transversely with respect to its axis, normally holding said spring in electrica contact with said terminal at the free ends thereof; and means including said spring and terminal in the lamp circuit; said spring being constructed and arranged to automatically separate from said terminal when released by said panel; whereby said circuit is broken and the lamp extinguished when said panel is broken or otherwise removed.

1 the 6. The combination with an electric lamp of a lamp casing inclosing said lamp; a movable switch member carried by said casing; a terminal in said casing opposed to sald switch member; means mechanically connecting said switch member and terminal, at one end thereof, including a block of insulating material between them; a frangible element extending in said casing transversely with respect to its axis, normally holding said switch member in electrical contact with said terminal at the free ends thereof; and means including said switch member and terminal in the lamp circuit; said switch member being constructed and arranged to automatically separate from said spring terminal when released by said panel; whereby said circuit is broken and lamp extinguished when said panellis broken or otherwise removed.

In testimony whereof, I have hereuntQ Q signed my name .at Philadelphia, Pennsyl- Vania, 1912. I

HIRAM H. HIBSGH.

Witnesses:

JACOB Scmmmmz, Jr-.,

1 i LOUIS M. lr nnrsnan.

56 this twenty-second day of Augg t,.. 

